Well, it will go a pretty green colour in quick time, it has all the strength of cooked spagetti and it will love being bolted to your Ali strips on the edge of the
deck.
Whilst
Stainless Steel is a shocking
price and not easy to
work, I did have a large A frame made up for a previous
Rib which held a 6 man
liferaft. Made in 2" Ali tube it could be esaily lifted up on board by one person when the
boat was on a
trailer. The firm used an ali tube suitable for
marine use so limiting the
corrosion potential and it just went a dull grey colour over time, no furry white stuff that sometimes appears on aliminium.
The only place for copper is in the antifouling
paint and the bottom of pans.
Pete